package com.sias.common.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import org.springframework.boot.jackson.JsonComponent;
import org.springframework.context.annotation.Bean;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;

/**
 * Spring MVC Json 配置
 *
 * @author <a href="https://github.com/sogra">程序员sogra</a>
 */
@JsonComponent
public class JsonConfig {

  /**
   * 添加 Long 转 json 精度丢失的配置
   */
  @Bean
  public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
    ObjectMapper objectMapper = builder.createXmlMapper(false).build();
    SimpleModule module = new SimpleModule();
    module.addSerializer(Long.class, ToStringSerializer.instance);
    module.addSerializer(Long.TYPE, ToStringSerializer.instance);
    objectMapper.registerModule(module);
    return objectMapper;
  }
}